Amazon negative ion therapeutic instrument was invented by China Academy of Sciences, transferred to Shenyang Bai Sen Amazon Medical Equipment Co., Ltd. by Beijing No.3 High-tech Company of China Academy of Sciences, and approved as a second-class medical device by the State Food and Drug Administration. The instrument integrates purification, disease treatment, health care and food disinfection, and is famous for its high negative ion concentration, small particle size and pure negative ion among similar products in China.

Based on the multi-wire emission principle of unipolar asymmetric electric field, the instrument generates high-concentration air negative ions by ionizing oxygen molecules in the air.